package android.content.pm; 
  
/** 
  * API for package data change related callbacks from the Package Manager. 
  * Some usage scenarios include deletion of cache directory, generate 
  * statistics related to code, data, cache usage(TODO) 
  * {@hide} 
  */ 
oneway interface IPackageDataObserver { 
     void onRemoveCompleted(in String packageName, boolean succeeded); 
}